| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-46686: smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req() |
| |
| This happens when called from SMB2_read() while using rdma |
| and reaching the rdma_readwrite_threshold. |
| |
| The Linux kernel CVE team has assigned CVE-2024-46686 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1.16 with commit edf38e9f4269591d26b3783c0b348c9345580c3c and fixed in 6.1.108 with commit 6df57c63c200cd05e085c3b695128260e21959b7 |
| Issue introduced in 6.3 with commit a6559cc1d35d3eeafb0296aca347b2f745a28a74 and fixed in 6.6.49 with commit a01859dd6aebf826576513850a3b05992809e9d2 |
| Issue introduced in 6.3 with commit a6559cc1d35d3eeafb0296aca347b2f745a28a74 and fixed in 6.10.8 with commit b902fb78ab21299e4dd1775e7e8d251d5c0735bc |
| Issue introduced in 6.3 with commit a6559cc1d35d3eeafb0296aca347b2f745a28a74 and fixed in 6.11 with commit c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf |
| Issue introduced in 6.2.3 with commit 74ab77137c99438626f4eb8134d8e26204bb5b64 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-46686 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| fs/smb/client/smb2pdu.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/6df57c63c200cd05e085c3b695128260e21959b7 |
| https://git.kernel.org/stable/c/a01859dd6aebf826576513850a3b05992809e9d2 |
| https://git.kernel.org/stable/c/b902fb78ab21299e4dd1775e7e8d251d5c0735bc |
| https://git.kernel.org/stable/c/c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf |
